A high and low temperature test chamber with uniform air supply

Abstract

This utility model relates to the field of high and low temperature test chamber technology, specifically a high and low temperature test chamber with uniform air supply, comprising a main chamber, an air outlet assembly, and a material plate assembly. The main chamber has a door on the front with an observation window. A control terminal is located on one side of the main chamber near the door. The air outlet assembly is located inside the upper part of the main chamber, and the material plate assembly is located inside the main chamber. The air outlet assembly includes an air outlet pipe. A main gear is fixed to one side of the air outlet pipe, and a rack meshes with the rear end of the main gear. A semi-gear ring is fixed to the rear end of the rack, and a semi-gear meshes with the inner side of the semi-gear ring. A motor is connected to the rear end of the semi-gear. This allows for the control of the swinging air outlet inside the main chamber, which improves the uniformity of air supply within the chamber, effectively eliminates temperature deviations caused by corner eddies or airflow blind spots, shortens the temperature stabilization time, reduces energy consumption, and improves the accuracy and efficiency of test results.

Description

Technical Field

[0001] This utility model relates to the field of high and low temperature test chamber technology, and in particular to a high and low temperature test chamber with uniform air supply. Background Technology

[0002] With the rapid development of industries such as electronics, aerospace, and new energy, high and low temperature test chambers, as core equipment for simulating extreme environmental conditions, directly affect the accuracy of product reliability testing and material performance research. The air uniformity inside the test chamber is a key indicator to ensure the validity of test results. Especially when conducting tests such as aging tests of electronic components and battery temperature resistance performance evaluation, the temperature gradient inside the chamber must be strictly controlled within a very small range.

[0003] However, existing high and low temperature test chambers generally adopt a fixed air outlet design, with a single and non-adjustable airflow direction. The fixed air outlet easily creates airflow blind spots and vortex areas inside the chamber, resulting in significant temperature differences between areas near and far from the air outlet. The single air supply mode is difficult to adapt to test samples of different sizes and placement methods. When large samples or multi-layer sample racks are placed, the airflow is severely obstructed, easily creating local high or low temperature dead zones, affecting the reliability and repeatability of test results. Therefore, we need to upgrade and modify the existing technology to overcome the existing problems and shortcomings. Utility Model Content

[0004] The purpose of this invention is to provide a high and low temperature test chamber with uniform air supply to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] Design a high and low temperature test chamber with uniform air supply, including a main chamber, an air outlet assembly and a material plate assembly. The main chamber has a door on the front and an observation window on the door. The main chamber has a control terminal on one side of the door. The air outlet assembly is located inside the upper part of the main chamber. The material plate assembly is located inside the main chamber.

[0007] The air outlet assembly includes an air outlet pipe, a main gear is fixed to one side of the air outlet pipe and a rack is meshed at the rear end of the main gear, a half-tooth ring is fixed to the rear end of the rack and a half-gear is meshed on the inner side of the half-tooth ring, and a motor is connected to the rear end of the half-gear.

[0008] Preferably, the upper and lower ends of the semi-toothed ring are respectively provided with positioning rods, and two sets of positioning frames are fixed inside the main housing, with the positioning rods at both ends being movably inserted into the two sets of positioning frames respectively.

[0009] Preferably, the inner side of the air outlet duct is electrically connected to the heating module and the cooling module inside the main housing, and the main housing is provided with a return air structure at a symmetrical position at the lower end of the air outlet duct.

[0010] Preferably, a protective net is provided on the outside of the air outlet duct, and the protective net is fixed to the inner wall of the main box and inclined downward.

[0011] Preferably, the material plate assembly includes a placement plate with a through opening on its surface. Guide rollers are provided at the lower ends of both sides of the placement plate, and guide rails are installed at the lower ends of the guide rollers. The guide rails are fixed to the inner wall of the main box.

[0012] Preferably, a connecting block is provided at the middle of the lower end of the placement plate and a telescopic rod is connected to the rear end of the connecting block; upper baffles are provided at the upper ends of both sides of the placement plate; and an outer baffle is provided at the outer end of the guide rail.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model has an air outlet component installed inside the device. The motor drives the half gear to rotate, which drives the half gear ring and one side rack to move up and down reciprocally. The rack drives the main gear to rotate forward and backward, which in turn drives the air outlet pipe to swing up and down inside the protective net. This enables the swing air outlet control inside the main chamber, which facilitates the improvement of the uniformity of air supply inside the chamber, effectively eliminates the temperature deviation caused by corner eddies or airflow blind spots, shortens the temperature stabilization time, reduces energy consumption, and improves the accuracy and efficiency of test results.

[0015] 2. This utility model has a material plate assembly inside the device. The connecting block and the placement plate are moved by the telescopic rod. The placement plate moves on the guide rail by the guide pulley, so that the forward and backward movement of the placement plate can be adjusted. This makes it convenient for operators to put and take materials without having to put their hands into the test chamber, effectively avoiding the risk of low temperature frostbite and high temperature burns, and reducing the occurrence of safety accidents.

[0016] Specific embodiments of the present invention are disclosed in detail with reference to the following description and accompanying drawings, indicating how the principles of the present invention can be employed. It should be understood that the embodiments of the present invention are not limited in scope. Within the spirit and scope of the appended claims, the embodiments of the present invention include many changes, modifications, and equivalents. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1This is a schematic diagram of the overall structure according to the present utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure according to the present invention;

[0020] Figure 3 An exploded view of the air outlet assembly according to this utility model;

[0021] Figure 4 This is an exploded view of the material plate assembly according to the present invention.

[0022] In the diagram: 1. Main housing; 2. Door; 21. Observation window; 3. Control terminal; 4. Air outlet assembly; 41. Air outlet duct; 42. Main gear; 43. Rack; 44. Half gear ring; 45. Half gear; 46. Motor; 47. Positioning rod; 48. Positioning frame; 49. Protective net; 5. Material plate assembly; 51. Placement plate; 52. Through opening; 53. Guide pulley; 54. Guide rail; 55. Connecting block; 56. Telescopic rod; 57. Upper baffle; 58. Outer baffle. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figure 1 As shown in Figure 4, the high and low temperature test chamber with uniform air supply provided in this embodiment includes a main chamber 1, an air outlet assembly 4 and a material plate assembly 5. The main chamber 1 has a door 2 on the front and an observation window 21 on the door 2. The main chamber 1 has a control terminal 3 on one side of the door 2. The air outlet assembly 4 is located inside the upper part of the main chamber 1, and the material plate assembly 5 is located inside the main chamber 1.

[0025] In this embodiment, the air outlet assembly 4 includes an air outlet pipe 41. A main gear 42 is fixed to one side of the air outlet pipe 41, and a rack 43 meshes with the rear end of the main gear 42. A semi-gear ring 44 is fixed to the rear end of the rack 43, and a semi-gear 45 meshes with the inner side of the semi-gear ring 44. A motor 46 is connected to the rear end of the semi-gear 45. Positioning rods 47 are respectively provided at the upper and lower ends of the semi-gear ring 44. Two sets of positioning frames 48 are fixed inside the main housing 1, and the positioning rods 47 at both ends are movably inserted into the two sets of positioning frames 48. The inner side of the air outlet pipe 41 is electrically connected to the heating module and the cooling module inside the main housing 1. A return air junction is provided symmetrically at the lower end of the air outlet pipe 41 in the main housing 1. The structure includes a protective net 49 on the outside of the air outlet duct 41. The protective net 49 is fixed to the inner wall of the main housing 1 and is inclined downwards. The motor 46 drives the half gear 45 to rotate, which in turn drives the half gear ring 44 and the rack 43 on one side to move up and down. The rack 43 drives the main gear 42 to rotate in both directions, which in turn drives the air outlet duct 41 to swing up and down inside the protective net 49. This enables the swinging air outlet control inside the main housing 1, which facilitates the improvement of the uniformity of air supply inside the housing, effectively eliminates the temperature deviation caused by corner eddies or airflow blind spots, shortens the temperature stabilization time, reduces energy consumption, and improves the accuracy and efficiency of test results.

[0026] In this embodiment, the material plate assembly 5 includes a placement plate 51. The surface of the placement plate 51 has a through opening 52. Guide rollers 53 are provided at the lower ends of both sides of the placement plate 51, and guide rails 54 are installed at the lower ends of the guide rollers 53. The guide rails 54 are fixed to the inner wall of the main box 1. A connecting block 55 is provided in the middle of the lower end of the placement plate 51, and a telescopic rod 56 is connected to the rear end of the connecting block 55. Upper baffles 57 are provided at the upper ends of both sides of the placement plate 51, and outer baffles 58 are provided at the outer ends of the guide rails 54. The connecting block 55 and the placement plate 51 are moved by the telescopic rod 56. The placement plate 51 moves on the guide rails 54 through the guide rollers 53, thereby realizing the forward and backward movement adjustment of the placement plate 51. This facilitates the operation of feeding and picking up materials by the operator without having to put their hands into the test chamber, effectively avoiding the risk of low temperature frostbite and high temperature burns, and reducing the occurrence of safety accidents.

[0027] The working principle and process of this utility model are as follows: During use, the connecting block 55 and the placement plate 51 are moved by the telescopic rod 56. The placement plate 51 moves on the guide rail 54 through the guide pulley 53. When the placement plate 51 moves to the outside of the chamber, the object to be tested is placed on the placement plate 51. Then, the placement plate 51 is controlled to return to its original position. During the test, the half gear 45 is driven to rotate by the motor 46. The half gear 45 drives the half gear ring 44 and the rack 43 on one side to move up and down. The rack 43 drives the main gear 42 to rotate forward and backward, which in turn drives the air outlet pipe 41 to swing up and down inside the protective net 49. The swinging air provides uniform airflow into the test chamber, shortens the temperature stabilization time, reduces energy consumption, and improves the accuracy and efficiency of the test results.

[0028] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

Claims

1. A high and low temperature test chamber for uniform air supply, characterized by, It includes a main housing (1), an air outlet assembly (4), and a material plate assembly (5). The main housing (1) has a door (2) on the front and an observation window (21) on the door (2). The main housing (1) has a control terminal (3) on one side of the door (2). The air outlet assembly (4) is located at the upper part of the main housing (1). The material plate assembly (5) is located inside the main housing (1). The air outlet assembly (4) includes an air outlet pipe (41), a main gear (42) is fixed on one side of the air outlet pipe (41), and a rack (43) meshes with the rear end of the main gear (42). A half-gear ring (44) is fixed to the rear end of the rack (43), and a half-gear (45) meshes with the inner side of the half-gear ring (44). A motor (46) is connected to the rear end of the half-gear (45).

2. The uniform air supply high-low temperature test chamber according to claim 1, characterized in that: The upper and lower ends of the semi-tooth ring (44) are respectively provided with positioning rods (47), and the main housing (1) is fixed with two sets of positioning frames (48). The positioning rods (47) at both ends are respectively movably inserted into the two sets of positioning frames (48).

3. The uniform air supply high-low temperature test chamber of claim 2, wherein: The inner side of the air outlet pipe (41) is connected to the heating module and the cooling module inside the main box (1), respectively. The main box (1) is provided with a return air structure at the symmetrical position at the lower end of the air outlet pipe (41).

4. The uniform air supply high-low temperature test chamber according to claim 3, wherein: A protective net (49) is provided on the outside of the air outlet pipe (41). The protective net (49) is fixed on the inner wall of the main box (1) and is inclined downward.

5. The uniform air supply high-low temperature test chamber of claim 1, wherein: The material plate assembly (5) includes a placement plate (51), the surface of which has a through opening (52), and guide pulleys (53) are provided at the lower ends of both sides of the placement plate (51), and guide rails (54) are installed at the lower ends of the guide pulleys (53). The guide rails (54) are fixed on the inner wall of the main box (1).

6. The uniform air supply high-low temperature test chamber of claim 5, wherein: The lower middle of the placement plate (51) is provided with a connecting block (55) and the rear end of the connecting block (55) is connected with a telescopic rod (56). The upper ends of both sides of the placement plate (51) are provided with upper baffles (57), and the outer ends of the guide rail (54) are provided with outer baffles (58).

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